Better-Bilt, BF-RICH Flex‑Leg Weatherstrip for Casement, Awning Windows


Upgrade and restore your Bench-Mark, Better-Bilt, Bf-Rich, Caradco, Biltbest, Marvin Casemaster, Cascade, Certainteed, Craftsman, Crestline, Croft, Eagle, Guardian Glass, Hurd, Jeld-Wen, Kolbe, Lincoln, Marvin, Milgard, Integrity, PGT, Peachtree, Pella, Ply-Gem, Sierra-Pacific, Simonton, Traco, Truth, Entry-Gard, Weather-Shield, Therma-True, Wenco, and others — with our "Flex‑Leg" Design Weather Strip, engineered for superior sealing performance across multiple window types. This improved sash weather seal features a double‑barb kerf insert and an advanced double‑function design, delivering a tighter, more efficient seal between the sash and the window frame on both wood and metal windows. Designed to fit a wide range of window profiles (see drawing), this weatherstrip is ideal for older window models manufactured between 1970's and 2010's. It’s the perfect choice for window repair, restoration, and energy‑efficiency upgrades — and professionals all agree — there are none better than this sash seal.
Key Features
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Flex‑Leg design for improved compression and flexibility
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Double‑barb kerf-insert, for a secure, long‑lasting fit
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Enhanced sealing performance between sash and frame
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Compatible with multiple BENCHMARK / BETTER‑BILT / BF RICH window profiles
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Works on casement, awning, double hung, and single hung windows




